Conveyer-chain for harvesters



as the former runs edgewise.

UNITED STATES Arent erica..

WILLIAM W'. BURSONOF ROOKFORD, ILLINOIS.

CONVEYER-CHAIN FOR HARVESTERS SPECIFICATION forming part of Letters Patent No. 238,849, dated March 15, 1881.

Application filed February 1, 1881. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM WORTH BUR- sON, of Rockford, in the county vof Winnebago, in the State of Illinois, have made a new useful Improvement in Falling Teeth for Conveyer-Chains, and that the following is a full and exact description of the same.

The invention relates to such conveyerchains as are used to transport the cut grain across the platform and up the elevator in some classes ot' reaping-machines; and it has particular reference to the mode of construct ing and attaching the falling teeth Without employing rivets or screws, so that they may be attached or detached at pleasure, but cannot in use become detached.

The object and effect ot' pivoted or falling teeth i's well known. It permits the tooth to stand up `durin g its period of advance across the platform and to assume an incumbent posture during its return, and thereby vertical space in the platform is economized. My invention consists in a tooth cast with a lateral iiange projecting around the pivotsocket, and in a plane perpendicular to the axis of said socket, and a notch in said flange at one side, in connection with a pintle or pivotpin fitting said socket, and a hook attached to said pin at its base, adapted to hook over the edge of said flange, said hook and iiange being adapted to each other4 so that they may be coupled by passing the hook through the notch before mentioned and uncoupled by a reverse movement.

That others may fully understand my invention, I will particularly describe it, having reference to the accompanying1 drawings, wherein- Figure l is a perspective of myv chain and falling tooth as the former runs atwise. Fig. 2 is a perspective of my chain and falling tooth Figs. 3 to 9 are details, coupled and detached.

A is the chain or belt; andBrepresents the pintle or pivot-pins, which project at suitable intervals from the edge or face of said belt, accordingas the same runs upon its edge or back.

If a chain is employed the links may be con structed in any desired manner, either by forging or casting, and the pins B may be attached in any suitable way, it being understood that my present invention does not refer in any way to the structure of the belt or chain, nor to the particular use to which it may be applied With my falling teeth attached to the base of said pintle B. There is a hook, C, the extremity whereof' projects toward the pintle and in a direction perpendicular thereto.

` D is the falling tooth. Itis L-shaped. The part c is the working part, and the foot b traverses a runway or guide-board, E, while the part et is in action, so as to keep the same upright; but when the part a goes out of action by passing over the edge of the platform, te., then the part b passes off its runway and permits the part c to fall backward to a position in the plane of the chain. In this position it may return beneath the grain or other material which is being moved over the platform without encountering the same, and when Vit has reached the point where it must go again into action the footb again encounters its runway, and the part a is therebylifted into action.

The tooth D is provided with a hub, d, With an axial socket or opening to receive the pintle B, and around the base of said hub there is also the flange c, which projects in a plane perpendicular to the axis ofthe hub d.. A notch, g, is made in said dan ge at a proper point, so that the hook C may pass through the flange and be brought over the saine by a subsequent partial rotation of the tooth. The relative rotation of the -hook O and the notch g must be such that the tootlrcan never in use assume a position which will permit them to coincide, so as to become uncoupled. The change of position possible to the tooth during actual use will amount to about ninety degrees, Whereas 4from a Working position to a position When coupling or uncoupling is possible will involve a movement of about one hundred and twenty degrees.

It is manifest that this tooth may be placed on a chain running in any position, it simply beingrequired that the pintle shall project in a direction perpendicular to the plane in whichA the tooth must move.

Having described my invention, what I claim as new, is-

1. A falling tooth, D, provided with hub d,

and ange e, with a. notch, g, combined with a 3. Achain,A, constructed with certain links, chain or belt provided with pintle B and hook having pintles B and hooks C cast integral C to engage the iange e, as set forth. With said links, combined with failing teeth D, 2. A falling tooth, D, provided with e hub, constructed with notched anges e, as and for 5 d, and 2t lateral flange, e, provided with a notch, the purpose set forth.

` g, combined AWith a pintle B, and 2t hook, G,

l(ind a gnideway, E, the iiotch g and hook C WILLIAM WORTH BURSON' being so placed relatively that they cannot as- Vitnesses: sume a coincident position while the chain is ALFRED L. CLARKE,

1o in Working position. l P. W. KELLY. 

